If you are using anything other than the HDMI input with HD programming the picture is going to look blotchy, when you see the tv on display, they are always playing a dvd disc and never have it on cable or satellite channels, this is because since the dvd is a digital format and looks very clean, by using the non-HD connections and since your tv has a digital tuner (mandated by the government) the tuner picks up interference from cell phones, WI-FI and police bands along with the cable signal and gets processed on the tuner, when everything goes to digital in Feb 2009 that will clearup considerably, but as for your question HDMI is the optimal connection to use

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

Below are some troubleshooting tips for a TV that has a fuzzy or blurry picture;

If your Plasma or LCD TV picture is blurry or fuzzy there are several things that may be causing the problem. It's worth running through the following list before seeking service. You may find yourself saving the full cost of a TV repair.

Make sure you are using the appropriate cable box for your TV. If you have a high-definition TV you should also be using a high-def channel box from your cable provider. Watching standard definition channels on a high-def TV can make the picture look distorted and fuzzy.

Not all cable channels are broadcast in high-definition. When you stretch a standard definition picture to fill the full frame of your wide-screen TV it may look distorted. You can try changing your TV display settings to show standard-def channels at their native resolution. This will create black or gray bands on either side of your picture.

Ideally all of your video components will be connected to your TV with HDMI cables. Your next best option will be component video cables. If your cable box does not have HDMI capabilities, contact your cable company about upgrading your box to one that does include HDMI.

Make sure there is no glare on your TV from a window or other strong light source. This can significantly degrade the quality of the image you are watching.

If your TV has digital noise reduction, try turning that feature on.

You can adjust your TV's sharpness and picture modes to see if that improves picture quality.

Try plugging the power cord into a different electrical outlet and/or surge protector. You may be receiving electrical interference through your power cord.

Trying moving any nearby electrical devices away from the TV. They may be creating interference that can degrade the picture quality.

Let me know if the above helps or not, so that I can direct you further on what do next.....

Sony TVs has an Optical Block issue. If there is an issue with the optical block, then there will be green, blue patches or tint on the TV display. Try resetting the TV to the factory settings and try Power resetting the TV. Turn Off the TV and remove the power plug from the wall outlet for 1 minute and reconnect it and check the operation. If the issue still persists, then TV may require service. You can contact the Customer relations team and check for the available options. Sony had repaired free of cost for such issues. Hence, contact the customer relations.

Plasma displays use a fairly high voltage and the supply for it has failed.
If you want to check on your own, remove the back panel and look for one or two boards with far fewer and larger than average components on it or them.
If two boards are present, the one most obviously related to the incoming AC cord will be the main supply but in some sets, the main and HV supplies may share a board.
Locate the part # and email the manufacturer for a price on repair or replacement.

I just had this problem with my pani pro plasma display (th-42ph9uk). Tried new wires, new cable box and had no luck. So, I went ahead and scheduled a service call.

Then, I bought a new surge protector - just a simple one from Radio Shack, that allows you to run the cable (coax) through it as well and it solved everything. Turns out it was a ground loop problem - and basically had nothing to do with the plasma.

Give it a shoot. simple fix for a very annoying problem. hope it works

if you take the back cover off the tv, you will see in a white screw in almost every board, those are called pot. (potentiometer).if you can get to meter the Ve. Vs. and Vset. start to screw or unscrew those white screw according to what the label says.usually the ones who gives you the blue and red dots are the white screw on the right of the center panel, and the one on the right of the right panel right under the metal thing to hang on the wall.

You have purchased a TV that has an inbuilt digital tuner, so no worries, you get the best performance(and the extra channels) without a set top box. Just have to be sure that you have loaded up the digital channels to your preset list. Any dramas, I can help you out.